Edwaed weston



(No Model.) 2 Sheets-Sheet 1.

E. WESTON.

DYNAMO ELECTRIC MACHINE.

Fig.9.! Patented Apr. 20, 1886.

2 SheetsSheet 2.

(No Model.)

B. WESTON.

DYNAMO ELEGTRIG MACHINE.

N0. 340,395. Patented Apr. 20, 1886.

o'uthographk- UNITED STATES PATENT OFFICE.

EDlVARD \VESTON, OF NE\VARK, NEXV JERSEY. ASSIGNOR TO THE UJITED STATES ELECTRIC LIGHTING COMPANY, OF NEYV YORK, N. Y.

DYNAMO-ELECTRIO MACl-HNE.

SPECIFICATION forming part of Letters Patent No. 340.325, dated :opril 20.1856.

Application filed December 27. 1884. Serial No. 1;";L311. No mcdrl.)

To aZZ whom it may concern: each head or plate extends a short stud, d, 5

Be it known that I, EDWARD \VEs'rON, a Fig. 2, and connection is made from these to subject of the Queen of Great Britain, and a the bars that support the brushes by the [lexircsident of Newark, in the county of Essex ble conducting-strap N. This device consists and State of New Jersey, have invented cerof a number of llat and comparatively thin tain new and useful Improvements in Dyna copper strips bound together at their ends by 5 mo-Electric Hachines, of which the following the copper or brass plates f g and screws h. is a specification, reference being had to the These plates are formed to constitute clamps, drawings accompanying and forming a part of which are tightened after they have been the same. passed over the studs d and the projecting Figure 1 is a View in perspective of the porends ofthe rods L by screws K, passing through tion of a dynamo or magneto electric machine suitable cars. to which the devices forming the subject of Over the studs bare slipped the castings 0, this application are applied. Fig. 2 isa plan of brass, which are split and provided with 5 View of the flexible connection which forms ears, through which pass screws in, by tightthe subject of the invention. Fig. 3 is an encning which the castings are firmly secured to 5 larged detail View of a portion of one of the the studs. in the upper or solid parts of the flexible connections. castings O are two or more holes, into which A A are the field-magnets of a dynamo or enter binding-screws a. The flexible straps 2o magneto electric machine; B B, the polebeing applied to the machine and the castings pieces, which are hollowed out and surround O secured to the studs b, the ends of the held the armature C. From the lower pole-piece, coils are inserted into one of the holes in each B, extends an arm or projection, D, upon casting O and the linewires into the otheror which is mounted the casting E, that forms the others, and the machine is in condition for bearing for one end of the armature-shaft F. work.

The commutator G is on this shaft between in the machines heretofore constructed by the bearing and the armature-core. The me, and upon which this deviceis an improvebrushes H are carried by the projections a ment, the connections between the brushfrom a plate and sleeve, K, mounted on the holders and the binding-posts were made by 0 stationary bearing through which the shaft short cables composed of numerous strands of passes. fine wire, the ends being bound together and 8 For the purpose of adjusting the position of soldered into a socket, forming part of a ring the brushes on the commutator, this sleeve or perforated plate that was sccuredto the rod and plate is mounted so as to be capable of L and to the bindingpost by nuts, the ends of 5 being turned about the shaft- F. The brushes rods L and portions of the binding-posts being are supported by bars or rods L, that pass screw-threaded for this purpose. In the conthrough and are secured to insulating-rings stant jarring to which the machines when in M, secured in the cars a. use are subjected, these nuts became loosened,

As it is practically essential that the terso that the electrical. connections were im- 0 minals of the machine should be stationary paired. The connections were more expenand easy of access, particularly so in the case sive and difficult to make, and the cables were of this machine, for the reason that the wire less flexible than those which I have described that surrounds the field-magnets forms a deherein. In my present form of connection the rived or shunt circuit and is taken off from ends of the flexible straps are in the same ver- 5 the binding-posts, I secure to each side of the tical plane, so that in the adjustment of the polar projection D a stud. 1), between which sleeve K there is no twisting of the straps, and the pole-piece is an insulating plate or which may therefore be made of superposed washer, c. The stud b has a flat head, e, that flat strips. There is no tendency in any of is secured by screws to the washer c. From the parts to loosen, so that good contact is always maintained, and the castings 0 may be set at any angle at wh ch it is desired to take oil the line-wires.

While more particularly applicable to the special form of machine shown, the invention may obviously be applied to any form of machine in which connection is to be made between the adjustable brush-holders and stationary binding-posts;

What I claim is 1. In a dynamo or magneto electric machine,

the combination, with stationary terminals or binding-posts and adjustable brush-holders,of flexible conductors composed of flat copper strips united at their ends by metal plates, forming screw-clamps that are secured to studs in electrical connection with the binding-posts and the brushes, respectively, in the manner set forth.

2. The combination, with the stationary bindingposts of a dynamo-electric machine consisting of a plate, e, stud b, and casting 0,

formed as a clamp secured to the stud,offlexible straps composed of strips of copper bound together attheir ends by plates,forming clamps 2 secured, respectively, to the adjustable brushholders and the binding-posts, as set forth.

3. The combination, with binding-posts secured to the pole-piece of a dynamo-machine and consisting of head or plate e,with studs b 0 v and d extending therefrom, and a clamp, 0, provided with holes and screws for retaining the wires, of flexible conductors composed of copper strips bound together at their ends by plates, forming clamps connected to the studs 3 5 d, and the rods L on the adjustable plate K, that carry the brushes, as set forth.

In testimony whereof I have hereunto set my hand this 20th day of December, 1884.

EDWARD WESTON.

Witnesses:

HENRY A. BEOKMEYER, DURAND WOODMAN. 

